/*
* Copyright (c) 2007, Nubo Technologies
* 
* All rights reserved.
* 
* Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
*
*    * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
*    * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
*    * Neither the name of the Nubo Technologies nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

package com.nubotech.gwt.oss.client;

/**
 * 
 * A Grant is composed of one Permission and one Grantee. The grantee in a grant may be a user or a group.
 * 
 * A permission can be READ, WRITE or READ/WRITE
 * 
 * The grantee in a grant may be a user or a group.
 * @author jonnakkerud
 * @see Grantee
 */
public class Grant {
    
    // When applied to a bucket, this grants permission to list the bucket. 
    // When applied to an object, this grants permission to read the object data and/or metadata.
    public static final String READ = "READ";
    
    // When applied to a bucket, this grants permission to create, overwrite, and delete any object in the bucket. 
    // This permission is not supported for objects.
    public static final String WRITE = "WRITE";
    
    // Grants permission to read the access control policy (ACL and owner) for the applicable bucket or object
    public static final String READ_ACP = "READ_ACP";
    
    // Gives permission to overwrite the ACP for the applicable bucket or object.
    public static final String WRITE_ACP = "WRITE_ACP";
    
    // This permission is short-hand for the union of READ, WRITE, READ_ACP, and WRITE_ACP permissions.
    public static final String FULL_CONTROL = "FULL_CONTROL";
    
    private String permission;
    private Grantee grantee;

    /**
     * Return the permision for this Grant
     * @return The permission
     */
    public String getPermission() {
        return permission;
    }

    /**
     * Set the Permision for this Grant. The permission should be "READ", "WRITE" or "FULL_CONTROL"
     * @param permission The permission to set on this Grant
     */
    public void setPermission(String permission) {
        this.permission = permission;
    }

    /**
     * Return the Grantee for this Grant
     * @return The Grantee
     */
    public Grantee getGrantee() {
        return grantee;
    }

    /**
     * Set the Grantee for this Group
     * @param grantee The Grantee
     */
    public void setGrantee(Grantee grantee) {
        this.grantee = grantee;
    }
    
    
}
